Ghadel



L. R; POSCHADEL. cRANK CASE on TRAP. APPLICATION FILED MAR. 5, 1918.

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Patented lMay 6, 1919.

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(iRANK-CASE OIL-TRAP.

Application filed March 5, 1918.

To all whom t may conce/m.'

Be it known that l, LEONARD li. Posoi-mnnn, a citizen ot the United States, and a resident of the city or' New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Crank-Case @il-Trap, of which the 'following is a tull, clear, and exa-ct description.

This invention relates to internal combustion engines and has for an object the provision of an improved construction for the crank casing whereby the lubricating oil therein is continually trapped regardless of the position of the engine.

Another obj ect in view is the provision'ot1 a trap for the crank. casing of the engine which will trap the lubricating oil in the casing when the engine is inclined in any direction, or is upside down.

A still further object of the invention, more specifically is the provision in a crank casing or' a trap member arranged at the ends and sides so as to receive the oil as the engine moves from ahorizontal position or Jfrom one position to another and to maintain the oil until the engine moves back to its correct horizontal position.

ln the accompanying drawings:

Figure l is a fragmentary side View ot an internal combustion engine with certain parts broken away for better illustrating` one embodiment of the invention.

Figure Q is a fragmentary transverse sectional view through Fig. 1 on line 2-2- Fig. 3 is a horizontal sectional view through Figs. l and Q on lines 3-3 in both figures, the same being on a slightly reduced scale.

ln constructing the invention the same may be formed in widely different shapes so as to conform to different shapes of crank casings and diiferentshapes of engines. The trap is intended primarily for engines use in the air service, but if desired may be used on engines for other services without departing from the spirit of the invention. In

the drawings one embodiment of the invention is shown, saine being illustrated in connection with a conventional form of engine in order to illustrate the principle involved.

Referring to the accompanying drawings by numera s, l indicates an engine of any desired kind and 2 the crank casing. The lower part 3 of the crank casing, usua ly termed the sump,-

Speccation of Letters Patent.

or oil container, coa-ctsv Patented May 6, imi-l,

serial No. 220,505.

vith the invention while acting in its usual capacity for receiving the oil and supporting the same until removed by a pump already in use, or preferred structure which may be placed at any desired point.

As shown in Fig'. l the division plate -t is provided with the usual depressions 5 tor receiving the connecting rod down at the right in Fig. l., so as to `provide the proper splash, while between these depressions suitable apertures 6 are provided 'so that the eX- cess oil may freely lflow into the container 3. Ordinarily if an engine provided with the division plate -Il was used in an airplane and turned upside down the oil would all How downwardly under the action oi'. gravity and into the various cylinders. rlhis is, of course, more or less objectionable, though it may not prevent the engine from function ing` to a certain extent. However, to secure the best results it is desired to prevent an excessive supply of oil, and in order to do this a trap provided tor receiving the oil from the container 3 when the engine begins to move from a horizontalplane, and holds the oil away from the cylinders when the engine is inverted or upside down. To accomplish this the division plate il is made solid from the end depression 5 at 7, in tact the solid section 7 extends'. entirely around on all sides of the compartment 5 as will be observed from Figsfl and 2. A depending wall or flange 8 is connected to the division mem er or plate '-'l at a distance from the ends and sides, said depending flanges being changed in direction when nearing the bottom of the container 3 so as to become substantially parallel therewith and Jform an overhanging section 9 whereby there is presented a passageway l0 entirely around the bottom of the container 3 so that when the engine begins to tilt the oil may flow into the compartment ll, which compartment eX- tends entirely around thecontainer and is of ample size Jfor receiving all ot' the `lubrieating oil. When the oil has reached the compartment 1l it is held therein even though the engine is turned on either end or is turned over. In addition to providing compartment or sump 3, a compartmentl 12 is provided above the division. plate 1l. This compartment is caused by forming a solid section 7 so as to extend outwardly and upwardly an then in a coil structure for providing da wall Y 13 and horizontal or overhangmg section 14e.

l1 Jfor the oil in the container solid,

It will thus be seen that means will Vbe vided above and below the division plate el for automaticallyY and instantly receiving' the lubricating oil supplied to the casing whenever the engine moves from a horizontal position, thu-s insuring the parts against an over supply oi'I lubricating oil. lt will also be noted tha as soon the engine again assumes a horizontal, or substantially horizontal position the oil will automatically and instantly flow back to its former'position so lthat the parts will function in the usual manner.

What I claim is:

l. In a device of thel character described, the combination with a crank casing of an internal combustion engine of means for pocketing or trapping lubricating oil therein when the eng'ine is upside down, said means forming a plurality of chan'ibers at the side and` adjacent the bottom of the proends and sides of the casing' for receiving the lubricating oil therefrom when the engine leaves a horizontal position.

3. In a device of the character described, the combination with an engine provided with a crank casing of a trap arranged in said casing, said trap comprising a division plate having a section adjacent the casing a depending flange member formed with an overhanging section lo: producing' a pocket or chamber on all sides of the ycasing for receiving the lubricating oil when the engine has moved from a horizontal position.

An oil-trap for crank casings comprising an inclosing memberarranged in the casing formed with walls coacting with the walls of the casi-ng for producing an annulaian annular opening adjacent the casing merging into a chamber at the ottoni of the casing.

5; In a device of the character described, the combination with an engine having a crank casing of a division plate in the casing formed with splashing depressions and a trap structure having' an retenu openings through which the excess oil passes,

upper wall acting as an annular continuation of said division plate, and a lower wall arranged parallel with the bottoni of said casing, said lower wall merging into an upstanding` flange connected to the inner edge of said annular upper wall, said lower wall falling short of reaching the casing whereby there will be provided an annular opening from the casing into the trap or pocket.

e combination 'with an engine provided with a crank casing', a division plate formed with splash depressions and apertures of a lubricating oil trap arranged bcneath said division plate, and a lubricating oil trap arranged around said division plate, said traps being' adjacent the walls of said casing.

l'. The combination with an ing a crank casing of a lubricating oil trap arranged in said crank casing' provided with a central solid member, a substantially coiled upper section, a substantiallyT coiled lower section for producing upper and lower chambers having entrances near one end, said coils being of snch a shape as to provide openings at the bottom whereby when the engine leaves a horizontal position the oil will run into the pockets or traps caused by said coiled sections.

he combination with an engine provided with a crank casing of a division `olate suoli a structure as to provide or a splashing system, a trap for the splash oil and excess oil, said trap extending entirely around the casing, said trap being' formed substantially S-shaped in cross section with a central solid wall, an upper coiled portion and a lower coiled portion for producing upper and lower pockets, both of said pockets having openings adjacent the walls of the casing' near 'the end oi: the pockets failther from the renter of the casing, whereby when the engine leaves the horizontal in any direction the oil will run automaticallyr into said pockets and be retained Itherein until the engine again assumes a horizontal position.

engine l1av- LEONARD R. POSCHADEL.

Copies o! this patent may be obtained for ve cents each, by addressing the Commissioner of Patents;

' Washington, D. C. 

